Frequency domain near-infrared spectroscopy (FD-NIRS) has proven to be a reliable method for quantification of tissue absolute optical properties. We present a full-sampling direct analog-to-digital conversion FD-NIR imager. While we developed this instrument with a focus on high-speed optical breast tomographic imaging, the proposed design is suitable for a wide-range of biophotonic applicatio...

Non-contact optical techniques for 3D surface data acquisition like short coherence (white light) interferometry, optical profilers or fringe projection are well established for applications with low surface complexity, where the average surface roughness amplitude is small and neglectable compared to the form amplitudes or where the aspect ratios of amplitudes and spacings are small. In genera...

PILOT, the Pathfinder for an International Large Optical Telescope, is proposed as a 2.4 m diameter optical/infrared telescope to be located at Dome C, Antarctica. The “strawman” optical configuration and instrument suite for PILOT described here is designed to take advantage of the unique atmospheric characteristics found at this site.

We describe an optical tweezers instrument for measuring short-ranged colloidal interactions, based on a combination of a continuous wave line optical tweezers, high speed video microscopy, and laser illumination. Our implementation can measure the separation of two nearly contacting microspheres to better than 4 nm at rates in excess of 10 kHz. A simple image analysis algorithm allows us to se...